JPS63267652A - Curl removing device - Google Patents

Abstract

PURPOSE:To prevent wrinkling of paper by moving a movable guide member to an operation position for pressing paper to a curl removing member and to a non-operation position by normal and reverse rotation of a transport roller. CONSTITUTION:A guide member 22 is pressed to a curl removing member 21 to straighten curl of paper 13 and the paper is transported between a transport and recording roller 15 and a recording head 14. After recording, the paper is cut by a cutter 6, and the unrecorded portion is returned by the reverse rotation of the transport roller 15. The guide member 22 is always pressed to a curl removing member 21 by a tension spring 24 through a shaft 23 to be located at an operation position. The transport roller 15 has a pinion 28 mounted thereon through a one-way clutch and meshed with a rack 26, and the rack 26 is connected to a guide member 22. During transport operation, the rotation of the transport roller 15 is not transmitted to the rack 26 by the one-way clutch and the guide member 22 is located at an operation position. During reverse rotation, the rack 26 is moved in the direction of an arrow B to locate the guide member at a non-operation position not to cause wrinkling of the paper 13.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、ファクシミリ、プリンタ等において。[Detailed description of the invention] Industrial applications The present invention is applicable to facsimiles, printers, etc.

ロール状に巻かれた紙ロールから引き出した紙のカール
を除去するカール取り装置に関する。The present invention relates to a curl removal device that removes curls from paper pulled out from a paper roll wound into a roll.

従来の技術 従来、ファクンミＩＪの記録部は、第３図に示すようＫ
、記録紙ロール１から引き出した記録紙２のカールを取
るためのカール取り部材３と、記録紙２をそのカール取
り部材３に押付けるように案内するガイド４と、記録紙
２をカール取り部材３の下流に案内するガイド版５と、
記録紙２に画像を記録する記録ヘッド６と、その記録ヘ
ッド６に記録紙２を押付は且つ記録紙２を搬送する記録
ローラ７と、記録紙２を切断するカッター８等を有；、
。2. Prior Art Conventionally, the recording section of Fakunmi IJ was
, a curl removing member 3 for removing curls from the recording paper 2 pulled out from the recording paper roll 1, a guide 4 for guiding the recording paper 2 so as to press it against the curl removing member 3, and a curl removing member for guiding the recording paper 2. A guide version 5 that guides downstream of 3,
It has a recording head 6 that records an image on the recording paper 2, a recording roller 7 that presses the recording paper 2 against the recording head 6 and conveys the recording paper 2, a cutter 8 that cuts the recording paper 2, etc.
.

しており、記録ローラ７の正転によって記録紙２を記録
紙ロール１から繰り出して記録ヘッド６によって画像記
録を行い、記録終了後は、記録の終端をカッター８位置
まで搬送し、カッター８で切断した後、記録ロー２７を
逆回転させて未使用の記録紙２の先端を記録位置まで引
き戻していた。The recording paper 2 is fed out from the recording paper roll 1 by the normal rotation of the recording roller 7, and an image is recorded by the recording head 6. After recording, the end of the recording is conveyed to the cutter 8 position, and the cutter 8 After cutting, the recording row 27 is reversely rotated to pull the leading edge of the unused recording paper 2 back to the recording position.

発明が解決しようとする問題点 しかし、かかる構成によれば、記録紙２を記録ロー２７
の逆回転によって引き戻す際に、記録紙２がカール取り
部材３とガイド４のところで拘束されているため、カー
ル取り部材３と記録ローラ７との間に押し込まれること
となり、記録紙２にしわが発生するという問題点のある
ことが判明した。Problems to be Solved by the Invention However, according to this configuration, the recording paper 2 is transferred to the recording row 27.
When the recording paper 2 is pulled back by the reverse rotation of the recording paper 2, the recording paper 2 is restrained by the curl removal member 3 and the guide 4, so it is pushed between the curl removal member 3 and the recording roller 7, and wrinkles occur in the recording paper 2. It turned out that there was a problem with this.

本発明は、上述の問題点に鑑みて為されたもので、記録
紙の引き戻し時において、記録紙のしわの発生を防止す
ることの可能なカール取り装置を提供することを目的と
する。The present invention has been made in view of the above-mentioned problems, and it is an object of the present invention to provide a curl removal device that can prevent the occurrence of wrinkles in recording paper when pulling the recording paper back.

問題点を解決するための手段 本発明は上述の問題点を解決するため、記録紙等の紙を
カール取り部材に押付けるように、その紙を案内するガ
イドとして、作動位置と非作動位置とに移動可能なガイ
ド部材を使用し、且つその紙を搬送する搬送ローラ（例
えば記録ローラ）の逆回転に連動して前記ガイド部材を
非作動位置に移動させる手段を設けるという構成を備え
たものである。Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a guide that guides paper such as recording paper so that it is pressed against the curl removal member, and has an operating position and a non-operating position. The apparatus uses a guide member that is movable in the direction of the paper, and is provided with means for moving the guide member to a non-operating position in conjunction with the reverse rotation of a conveyance roller (for example, a recording roller) that conveys the paper. be.

作用 本発明は上述の構成によって、搬送ローラが正転して紙
を所定方向に搬送している間には、ガイド部材が作動位
置にあって、その紙をカール取り部材に押付け、紙のカ
ールを取っているが、搬送ローラが逆回転して紙を引き
戻す際には、その逆回転に連動してガイド部材が非作動
位置に移動し、これにより紙がカール取り部材とガイド
部材との間を容易に通過することができ、紙へのしわの
発生が防止される。According to the above-described structure, the guide member is in the operating position and presses the paper against the curl removing member to prevent the paper from curling. However, when the conveyance roller rotates in the opposite direction and pulls the paper back, the guide member moves to the non-operating position in conjunction with the reverse rotation, which causes the paper to be separated between the curl removal member and the guide member. can easily pass through the paper, preventing wrinkles from forming on the paper.

実施例 以下、本発明の詳細な説明する。第１図は本発明の一実
施例によるカール取り装置を備えたファクシミリの記録
部を概略的に示す断面図であり、１１はケース、１２は
記録紙ロール、１３は記録紙ロール１２から引き出され
る記録紙、１４は記録紙１３に記録を行う記録ヘッド、
１５は記録紙□１３を記録ヘッド１４に押付ける記録ロ
ーラであり、記録紙１３を搬送する搬送ローラを兼ねて
いる。１６は記録紙１３を切断するカッター、１７は切
断した記録紙１３を排出する排出ローラである。２０は
本発明の実施例によるカール取り装置であり、カール取
り部材２１と、そのカール取り部材２１に記録紙１３を
押付けるように記録紙１３を案内するガイド部材２２を
備えている。ガイド部材２２はビン２３を中心として旋
回可能であり、図示の作動位置と、この位置より反時計
方向に旋回して記録紙１３のカール取り部材２１への押
付力を低減する非作動位置とに移動可能である。このガ
イド部材２２には、ガイド部材２２を通常は作動位置に
付勢する引張りばね２４と、ガイド２５で案内されたラ
ック２６が連結されており、第２図に示すように、この
ラック２６には、記録ローラ１５にワンウェイクラッチ
２７を介して連結されたピニオン２８が噛み合っている
。ワンウェイクラッチ２７は、記録ローラ１５の矢印Ａ
で示す正転方向の回転は伝達しないが、その逆回転をピ
ニオン２８に伝達するように配列されている。かくして
、記録ロー２１５の逆回転によってピニオン２８が矢印
Ａとは反対方向に回転し、ラック２６を矢印Ｂ方向に移
動させてガイド部材２２を矢印Ｃ方向に旋回させ、非作
動位置に移動させる。換言すれば、ピニオン２８、ラッ
ク２６等は、記録ロー２１５の逆回転に連動してガイド
部材２２を非作動位置に移動させる手段を構成する。な
お、第２図において、３ｏは記録ローラ１５駆動用の記
録モータである。EXAMPLES The present invention will be described in detail below. FIG. 1 is a cross-sectional view schematically showing a recording section of a facsimile equipped with a curl removal device according to an embodiment of the present invention, in which 11 is a case, 12 is a recording paper roll, and 13 is a recording paper pulled out from the recording paper roll 12. a recording paper; 14 is a recording head for recording on the recording paper 13;
Reference numeral 15 denotes a recording roller that presses the recording paper □ 13 against the recording head 14, and also serves as a conveyance roller that conveys the recording paper 13. 16 is a cutter that cuts the recording paper 13, and 17 is a discharge roller that discharges the cut recording paper 13. Reference numeral 20 denotes a curl removing device according to an embodiment of the present invention, which includes a curl removing member 21 and a guide member 22 that guides the recording paper 13 so as to press the recording paper 13 against the curl removing member 21. The guide member 22 is pivotable about the bin 23, and has an operating position as shown in the figure and a non-operating position in which it is pivoted counterclockwise from this position to reduce the pressing force of the recording paper 13 against the curl removal member 21. It is movable. A tension spring 24 that normally urges the guide member 22 to the operating position and a rack 26 guided by a guide 25 are connected to the guide member 22. As shown in FIG. A pinion 28 connected to the recording roller 15 via a one-way clutch 27 is engaged with the recording roller 15. The one-way clutch 27 is connected to the arrow A of the recording roller 15.
They are arranged so that rotation in the forward direction shown by is not transmitted, but reverse rotation is transmitted to the pinion 28. Thus, the reverse rotation of the recording row 215 causes the pinion 28 to rotate in the opposite direction to arrow A, moving the rack 26 in the direction of arrow B, and turning the guide member 22 in the direction of arrow C to move it to the non-operating position. In other words, the pinion 28, rack 26, etc. constitute means for moving the guide member 22 to the non-operating position in conjunction with the reverse rotation of the recording row 215. In addition, in FIG. 2, 3o is a recording motor for driving the recording roller 15.

以上のように構成されたカール取り装置につき、以下そ
の動作を説明する。通常の記録動作時には、ガイド部材
２２が引張りばね２４によって第１図に図示する作動位
置にあり、記録紙１３をカール取り部材２１に押付けて
いる。記録ローラ１５が矢印Ａ方向に回転して記録紙Ｉ
３を搬送し、記録ヘッド１４で記録を行う。この際、記
録紙１３はカール取り部材２２に適当な押付力で押付け
られ、記録紙のカールが除去されている。記録終了後は
、記録の終端がカッター１６位置まで搬送され、カッタ
ー１６で切断される。切断後、記録ローラド５が逆回、
転し、未使用の記録紙１３の先端を記録位置まで引き戻
す。この際、記録ローラ１５の逆回転に連動して、ピニ
オン２８が回転し、それに噛み合う２ツク２６が矢印Ｂ
方向に移動し、ガイド部材２２を矢印Ｃ方向に旋回させ
て非作動位置に移動させる。これによって、カール取り
部材２１とガイド部材２２の間が広がるため、記録ロー
２１５の逆回転によって引き戻された記録紙１３は、カ
ール取り部材２１とガイド部材２２との間を通って記録
紙ロール１２側に戻され、カール取り部材２１と記録ロ
ーラ１５との間で記録紙１３が詰まってしわが生じると
いうことが防止される。The operation of the curl removing device configured as described above will be explained below. During normal recording operation, the guide member 22 is in the operating position shown in FIG. The recording roller 15 rotates in the direction of arrow A, and the recording paper I
3 is conveyed, and the recording head 14 performs recording. At this time, the recording paper 13 is pressed against the curl removing member 22 with an appropriate pressing force to remove curls from the recording paper. After the recording is completed, the end of the recording is conveyed to the cutter 16 position and cut by the cutter 16. After cutting, the recording roller 5 rotates in the reverse direction,
and pull the leading edge of the unused recording paper 13 back to the recording position. At this time, the pinion 28 rotates in conjunction with the reverse rotation of the recording roller 15, and the two pinions 26 that mesh with it rotate at the arrow B.
direction, and the guide member 22 is rotated in the direction of arrow C to move it to the non-operating position. As a result, the distance between the curl removing member 21 and the guide member 22 is widened, so that the recording paper 13 pulled back by the reverse rotation of the recording row 215 passes between the curl removing member 21 and the guide member 22 and is placed on the recording paper roll 12. This prevents the recording paper 13 from becoming jammed between the curl removing member 21 and the recording roller 15 and causing wrinkles.

なお、上記実施例は、ファクシミリ装置の記録部に使用
したカール取り装置を示したが、本発明はこの場合に限
定されず、任意の紙のカール取りに適用可能である。Although the above-mentioned embodiment shows a curl removing device used in a recording section of a facsimile machine, the present invention is not limited to this case, and can be applied to removing curls from any paper.

発明の効果 以上の説明から明らかなように、本発明は、紙ロールか
ら引き出される紙を搬送する搬送ローラと前記紙ロール
との間に配置されたカール取り部材と、このカール取り
部材に紙を押付けるように紙を案内するガイド部材であ
って、作動位置と非作動位置とに移動可能なガイド部材
と、前記搬送ローラの逆回転に連動して前記ガイド部材
を非作動位置に移動させる手段とを設けることによって
、搬送ローラが正転して紙を所定方向に搬送している間
には、ガイド部材が作動位置にあって、その紙をカール
取り部材に押付け、紙のカールを取っているが、搬送ロ
ーラが逆回転して紙を引き戻す際には、その逆回転に連
動してガイド部材が非作動位置に移動し、これにより紙
がカール取り部材ととガイド部材との間を容易に通過す
ることができ、紙へのしわの発生を防止することができ
るという効果を有するものである。Effects of the Invention As is clear from the above description, the present invention includes a curl removing member disposed between the paper roll and a conveyance roller that transports paper pulled out from a paper roll, and a curl removing member that carries paper to the curl removing member. A guide member that guides the paper in a pressing manner and is movable between an operating position and a non-operating position, and a means for moving the guide member to the non-operating position in conjunction with reverse rotation of the conveyance roller. By providing this, while the conveyance roller rotates normally and conveys the paper in a predetermined direction, the guide member is in the operating position and presses the paper against the curl removal member to remove curls from the paper. However, when the conveyance roller rotates in the opposite direction and pulls the paper back, the guide member moves to the non-operating position in conjunction with the reverse rotation, thereby allowing the paper to easily pass between the curl removal member and the guide member. This has the effect of preventing wrinkles from forming on the paper.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本発明の一実施例によるカール取り装置を備え
たファクシミリの記録部を示す概略断面図、第２図はそ
の装置におけるＮ己録ローラ及びラック部分を示す平面
図、第３図は従来のファクシミリの記録部を示す概略断
面図である。 １２・・・記録紙ロール、１３・・・記録紙、１４・・
・記録ヘッド、１５・・・記録ローラ（搬送ローラ）、
１６・・・カッター、２０・・・カール取り装置、２１
・・・カール取り部材、２２・・・ガイド部材、２３・
・・ピン、２４・・・引張りばね、２６・・・ラック、
２７・・・ワンウエンクラッチ、２８・・・ピニオン。FIG. 1 is a schematic sectional view showing the recording section of a facsimile equipped with a curl removing device according to an embodiment of the present invention, FIG. 2 is a plan view showing the recording roller and rack portion of the device, and FIG. FIG. 2 is a schematic cross-sectional view showing a recording section of a conventional facsimile. 12...Recording paper roll, 13...Recording paper, 14...
・Recording head, 15...recording roller (conveyance roller),
16... Cutter, 20... Curling device, 21
... Curl removing member, 22... Guide member, 23.
...Pin, 24...Tension spring, 26...Rack,
27...one clutch, 28...pinion.

Claims (1)

【特許請求の範囲】[Claims] 紙ロールから引き出される紙を搬送する搬送ローラと、
この搬送ローラと前記紙ロールとの間に配置されたカー
ル取り部材と、このカール取り部材に紙を押付ける作動
位置と非作動位置とに移動可能なガイド部材と、前記搬
送ローラの逆回転に連動して前記ガイド部材を非作動位
置に移動させる手段とを有するカール取り装置。A conveyor roller that conveys the paper pulled out from the paper roll;
A curl removal member disposed between the conveyance roller and the paper roll, a guide member movable between an operating position and a non-operation position for pressing the paper against the curl removal member, and and means for interlockingly moving the guide member to a non-operating position.